class Prism::ParametersNode
Public Instance Methods
signature
()
Mirrors the Method#parameters
method.
# File lib/prism/node_ext.rb, line 269 def signature names = [] #: Array[[Symbol, Symbol] | [Symbol]] requireds.each do |param| names << (param.is_a?(MultiTargetNode) ? [:req] : [:req, param.name]) end optionals.each { |param| names << [:opt, param.name] } if rest && rest.is_a?(RestParameterNode) names << [:rest, rest.name || :*] end posts.each do |param| case param when MultiTargetNode names << [:req] when NoKeywordsParameterNode, KeywordRestParameterNode, ForwardingParameterNode # Invalid syntax, e.g. "def f(**nil, ...)" moves the NoKeywordsParameterNode to posts raise "Invalid syntax" else names << [:req, param.name] end end # Regardless of the order in which the keywords were defined, the required # keywords always come first followed by the optional keywords. keyopt = [] #: Array[OptionalKeywordParameterNode] keywords.each do |param| if param.is_a?(OptionalKeywordParameterNode) keyopt << param else names << [:keyreq, param.name] end end keyopt.each { |param| names << [:key, param.name] } case keyword_rest when ForwardingParameterNode names.concat([[:rest, :*], [:keyrest, :**], [:block, :&]]) when KeywordRestParameterNode names << [:keyrest, keyword_rest.name || :**] when NoKeywordsParameterNode names << [:nokey] end names << [:block, block.name || :&] if block names end